Hi friends, creduce instructed me to send you this testcase :)
it's some kind of issue with gcc revealed by Boost.Python. I started with a moderately hand minimized testcase and ran it through the preprocessor first. The link is to DropBox because GMail won't let me send it as an attachment (!): https://www.dropbox.com/s/gu2bq1176fzyujn/cr_testcase.tgz?dl=0 Thanks for any help, Jeff
